Home / 18,835.44-28,234.78-8,972.08

Finding the Fourth Proportional to 18,835.44, 28,234.78 and 8,972.08

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Solution

The fourth proportional to 18,835.44, 28,234.78 and 8,972.08 is: 13,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.44 : 28,234.78 = 8,972.08 : x
  2. Step 2: Convert to fraction form
    18,835.44/28,234.78 = 8,972.08/x
  3. Step 3: Cross multiply
    18,835.44x = 28,234.78 × 8,972.08
  4. Step 4: Simplify right side
    18,835.44x = 253,324,704.94
  5. Step 5: Solve for x
    x = 253,324,704.94/18,835.44
  6. Step 6: Final answer
    x = 13,449.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.